and once those black markets are in place you have a rather thorny problem. growing drugs is not mainly an agricultural skill, it is primarily a networkiig skill. a grower or dealer won't go straight because you've made the thing they do legal. they'll pivot to something else you've made illegal. but the best way to erode the black market isn't to target the cartel, it's to target the street level dork engaging in dangerous behavior because they're desperate.

the less desperation there is in the ecosystem, the less criminal behavior there will be